# Linear Algebra: A Modern Introduction, 4th Edition

**David Poole****ISBN-10:**1285463242**ISBN-13:**9781285463247- 720 Pages | Hardcover
- Previous Editions: 2011, 2006, 2003
- COPYRIGHT: 2015 Published

**David Poole****ISBN-10:**1285463242**ISBN-13:**9781285463247- 720 Pages | Hardcover
- Previous Editions: 2011, 2006, 2003
- COPYRIGHT: 2015 Published

David Poole's innovative LINEAR ALGEBRA: A MODERN INTRODUCTION, 4e emphasizes a vectors approach and better prepares students to make the transition from computational to theoretical mathematics. Balancing theory and applications, the book is written in a conversational style and combines a traditional presentation with a focus on student-centered learning. Theoretical, computational, and applied topics are presented in a flexible yet integrated way. Stressing geometric understanding before computational techniques, vectors and vector geometry are introduced early to help students visualize concepts and develop mathematical maturity for abstract thinking. Additionally, the book includes ample applications drawn from a variety of disciplines, which reinforce the fact that linear algebra is a valuable tool for modeling real-life problems.

- “Technology Bytes”, an extensive online appendix that shows Maple, Mathematica, and MATLAB instructions key for working out examples and exercises from the text in a computer algebra system.
- Explorations provide deeper discovery-based guides on key concepts, designed for individual or group work.
- Ample applied problems from a wide variety of disciplines, including mathematics, physics, engineering, biology, chemistry, computer science, economics, geography, psychology, and sociology.
- Context-sensitive margin notes for extra help and cross-references.
- Vignettes showcase modern applications of linear algebra.
- Biographical sketches highlight many of the mathematicians who contributed to the development of linear algebra.

1. VECTORS.

Introduction: The Racetrack Game. The Geometry and Algebra of Vectors. Length and Angle: The Dot Product. Exploration: Vectors and Geometry. Lines and Planes. Exploration: The Cross Product. Writing Project: Origins of the Dot Product and the Cross Product. Applications.

2. SYSTEMS OF LINEAR EQUATIONS.

Introduction: Triviality. Introduction to Systems of Linear Equations. Direct Methods for Solving Linear Systems. Writing Project: A History of Gaussian Elimination. Explorations: Lies My Computer Told Me; Partial Pivoting; Counting Operations: An Introduction to the Analysis of Algorithms. Spanning Sets and Linear Independence. Applications. Vignette: The Global Positioning System. Iterative Methods for Solving Linear Systems.

3. MATRICES.

Introduction: Matrices in Action. Matrix Operations. Matrix Algebra. The Inverse of a Matrix. The LU Factorization. Subspaces, Basis, Dimension, and Rank. Introduction to Linear Transformations. Vignette: Robotics. Applications.

4. EIGENVALUES AND EIGENVECTORS.

Introduction: A Dynamical System on Graphs. Introduction to Eigenvalues and Eigenvectors. Determinants. Writing Project: Which Came First-the Matrix or the Determinant? Vignette: Lewis Carroll's Condensation Method. Exploration: Geometric Applications of Determinants. Eigenvalues and Eigenvectors of n x n Matrices. Writing Project: The History of Eigenvalues. Similarity and Diagonalization. Iterative Methods for Computing Eigenvalues. Applications and the Perron-Frobenius Theorem.

Vignette: Ranking Sports Teams and Searching the Internet.

5. ORTHOGONALITY.

Introduction: Shadows on a Wall. Orthogonality in Rn. Orthogonal Complements and Orthogonal Projections. The Gram-Schmidt Process and the QR Factorization. Explorations: The Modified QR Factorization; Approximating Eigenvalues with the QR Algorithm. Orthogonal Diagonalization of Symmetric Matrices. Applications.

6. VECTOR SPACES.

Introduction: Fibonacci in (Vector) Space. Vector Spaces and Subspaces. Linear Independence, Basis, and Dimension. Writing Project: The Rise of Vector Spaces. Exploration: Magic Squares. Change of Basis. Linear Transformations. The Kernel and Range of a Linear Transformation. The Matrix of a Linear Transformation. Exploration: Tilings, Lattices and the Crystallographic Restriction. Applications.

7. DISTANCE AND APPROXIMATION.

Introduction: Taxicab Geometry. Inner Product Spaces. Explorations: Vectors and Matrices with Complex Entries; Geometric Inequalities and Optimization Problems. Norms and Distance Functions. Least Squares Approximation. The Singular Value Decomposition. Vignette: Digital Image Compression. Applications.

8. CODES. (Online)

Code Vectors. Vignette: The Codabar System. Error-Correcting Codes. Dual Codes. Linear Codes. The Minimum Distance of a Code.

Appendix A: Mathematical Notation and Methods of Proof.

Appendix B: Mathematical Induction.

Appendix C: Complex Numbers.

Appendix D: Polynomials.

- Writing Projects offer students opportunities to research and write about linear algebra. Projects are designed for individual or group work.
- Chapter 8: Codes is an online chapter combining all material on codes previously interspersed throughout the text.
- More than 100 new or revised exercises.

All supplements have been updated in coordination with the Main title.

Please see Main title page for new to this edition information.

Solutions Builder
(ISBN-10: 1285842146 | ISBN-13: 9781285842141)

This online instructor database offers complete worked-out solutions to all exercises in the text, allowing you to create customized, secure solutions printouts (in PDF format) matched exactly to the problems you assign in class.

Student Solutions Manual (ISBN-10: 1285841956 | ISBN-13: 9781285841953)Contains detailed worked solutions to all odd-numbered exercises in the text; section and chapter summaries of symbols, definitions, and theorems; and study tips and hints. Complex exercises are explored through a question-and-answer format designed to deeper understanding. Challenging and entertaining problems that further explore selected exercises are also included.

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Student Solutions Manual
(ISBN-10: 1285841956 | ISBN-13: 9781285841953)

Contains detailed worked solutions to all odd-numbered exercises in the text; section and chapter summaries of symbols, definitions, and theorems; and study tips and hints. Complex exercises are explored through a question-and-answer format designed to deeper understanding. Challenging and entertaining problems that further explore selected exercises are also included.

WebAssign Instant Access for Advanced Math, Single-Term Courses (ISBN-10: 1285858271 | ISBN-13: 9781285858272)IMPORTANT: When purchasing this instant access code for Advanced Math, ensure that you are using it in one of the following courses: Differential Equations or Linear Algebra. Use with a different course may cause complications with access. Exclusively from Cengage Learning, WebAssign combines exceptional mathematics content with the most powerful online homework solution, WebAssign. WebAssign engages students with immediate feedback, rich tutorial content, and an interactive, fully customizable eBook, Cengage YouBook helping students to develop a deeper conceptual understanding of their subject matter. This access code includes access to WebAssign and life-of-edition access to the eBook for the registered edition of that text. If you need to retake the course and your instructor is using the same book AND edition then you will not need to buy a new code. This instant access code will be delivered via email when purchased. If you are not certain this is the correct access code for your course, please contact your instructor.

WebAssign Instant Access for Applied Math, Single-Term Courses (ISBN-10: 1285857615 | ISBN-13: 9781285857619)IMPORTANT: When purchasing this instant access code for Applied Math, ensure that you are using it in one of the following courses: Applied Math, Finite Math or Applied Calculus. Use with a different course may cause complications with access. Exclusively from Cengage Learning, WebAssign combines exceptional mathematics content with the most powerful online homework solution, WebAssign. WebAssign engages students with immediate feedback, rich tutorial content, and an interactive, fully customizable eBook, Cengage YouBook helping students to develop a deeper conceptual understanding of their subject matter. This access code includes access to WebAssign and life-of-edition access to the eBook for the registered edition of that text. If you need to retake the course and your instructor is using the same book AND edition then you will not need to buy a new code. This instant access code will be delivered via email when purchased. If you are not certain this is the correct access code for your course, please contact your instructor.

Enhanced WebAssign® International Instant Access Code Homework with e-Book (ISBN-10: 133729697X | ISBN-13: 9781337296977)Enhanced WebAssign® engages you with immediate feedback, rich tutorial content, and an interactive eBook, helping you to develop a deeper conceptual understanding of your subject matter.

Enhanced WebAssign® International Printed Access Card Homework with e-Book (ISBN-10: 1337296961 | ISBN-13: 9781337296960)Enhanced WebAssign® engages you with immediate feedback, rich tutorial content, and an interactive eBook, helping you to develop a deeper conceptual understanding of your subject matter.

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